Wrapping



March 14, 1961 H. F. PEISTRUP WRAPPING 2 Sheets-Sheet 1 Filed April 16, 1956 March 14, 1961 H, lF, PElSTRUP WRAPPING Filed April 16, 1956 2 Sheets-Sheel'l 2 United States *Patentj O WRAPPING Henry Frederick Peistrup, St.V Louis, Mo., assignor to Bemis Bro. Bag Company, St. Louis, Mo., a corporation of Missouri Filed Apr. 16, 1956, ser. No. 518,491 z claims. (ci. 154-50) f. 1 CC 2 The cloth layer of each web is preferably burlap. The laminant is preferably asphalt. j

The webs 1 and 11 are made using standard width bur` lap (forty inches). The paper layer 3 of theV web 1 projects somewhat beyond the burlap layer 5 at one margin of the web 1 as indicated at 19. The paper`layer-3 of the web 1 is narrower than the burlap layer' 5 of the web 1, and layer 5 projects substantially beyond the paper layer 3 at the other margin of the web 1 to form a burlap ap indicated at 21. The paper layer 13 of the web 11 is somewhat wider than the burlap layer 15 of web 11 and projects somewhat beyond the burlap layer 15 at one margin of the web 11 as indicated at Z3. At the'other margin of web 11, the edges of layers 13 and 15 are substantially coextensive, las indicated at 25.

The webs 1 and 11 are shown in Fig. 1 as being with' drawn from supply rolls 27 and 29 and travelling toward the right over a combining roll 31 where they come together in superimposedrelation with their burlap layers 5 and 15 in face-to-face engagement and with their margins, including the projecting portions 19 and 23 of the paper layers, substantially aligned. The web 1 is shown other than by usingV preformed tubing, but it will 4be undery stood that this presents diiculties because a tight wrapping is desirable and yaccountmust be taken of the fact that the diameters of the rolls may vary widely. This invention provides a waterproof wrapping material which may be supplied to carpet manufacturers in roll form, and from a roll of which a suiiicient length to wrap one carpet roll may be readily withdrawn, cut off, wrapped around a carpet roll and sealed to provide la fully waterproof wrapping for the carpet roll. A further feature of the wrapping material of this invention is that it may be supplied in a lwidth sufficient to accommodate the wrapping of the largest-diameter carpet rolls, while itself being made of relatively inexpensive waterproof wrapper material such as asphalt-laminated paper and burlap made with standard width burlap. Other features and objects will be in part apparent and in part pointed out hereinafter.

The invention iaccordingly comprises the constructions hereinafter described, the scope of the invention being indicated in the following claims.

In the accompanying drawings, in which one of various possible embodiments of the invention is illustrated,

Fig. l is a perspective illustrating a method of forming wrapping material of this invention, partly broken away;

Fig. 2 is a perspective showing a length of wrapping material cut from the material formed by the method illustrated in Fig. l, laid ilat, and having a carpet roll placed thereon preparatory to wrapping the roll, parts being broken away;

. Fig. 3 is `a View in elevation of the Wrapped carpet roll, part of the wrapper being broken away; and,

Fig. 4 is an enlarged section taken on line 4 4 of Fig. 3, thicknesses being exaggerated.

Corresponding reference characters indicate corresponding parts throughout the several views of the drawmgs.

Referring to Fig. l of the drawings, there is indicated at 1 a first continuous standard-width web consisting of a layer of paper 3 and a layer of cloth 5 laminated by means of a waterproof laminant 7. There is indicated at 11 a second continuous standard-width web consisting of a layer of paper 13 and a layer of cloth 15 laminated by means of a Waterproof laminant 17 (see Fig. 2). The

Ipaper layer of each web is preferably a creped kraft as travelling over an adhesive-applyingjroll 33 VKprior to passing over the combining roll. The adhesive-applying roll 33 rotates in an adhesive pot 35 and appliesa stripe of adhesive 37 to the burlap side of web 1 adjacent its margin which has the projecting paper'portion 19.Y The adhesive is a waterproof adhesive such as a compounded latex adhesive. f

The Wrapping material, designated M, issuing from the combining roll 3-1 thus comprises the irstweb 1 and the second web 11, these webs being superimposed with .their burlap layers 5 and 15 in face-to-face'engagement, and being secured together along one margin by means of the waterproof adhesive at 37 between the burlap layers, the burlap 5 of web 1 projecting at 21 beyond the paper 3 of web 1 at its other margin. This material M may be wound into a roll (not shown) for convenient storage and shipment. The paper overlaps at 19 and 23 prevent blocking in the roll that would otherwise be caused by any squeeze-out of adhesive 37 from between the burlap layers 5 and 15.

The wrapping material M is used for wrapping a carpet p roll such as indicated at R in Figs. 2-4 in the following Assuming that the material M has been sup-V manner. plied in roll form, a single wrapper length W thereof, somewhat greater than the length of the carpet roll R, is pulled out, cut olf, and laid out ilat by unfolding the portions of the webs 1 and 11 included in the Wrapper i length W, with the burlap layers 5 and 15 on the bottom and the paper layers 3 and 13 on top (see Fig. 2). Then, the carpet roll R is rolled onto the Wrapper W, extending lengthwise of the wrapper W (i.e., parallel to the seam indicated at 39 between the portions of webs 1 and 11 included in the wrapper W). Next, the wrapper W is wrapped around the roll R, the portion of the wrapper W including projecting marginal burlap ap Z1 being brought on the outside of the edge 25 of the wrapper.

the ap 21 and the underlying opposite marginal portion of the wrapper. The adherence of the burlap of the flap 21 to the outside burlap of the wrapper provides for strong securement of the wrapper. The waterproof adhesive at 37 prevents the entry of any water through the Patented Mar, 14,1961

The seam i 39 assumes a folded-over position between the wrapper r t seam 39. The wire ties 43 are applied so tightly as to provide water-tight closures, at the ends of the wrapper.

While as above described each multi-ply web 1 and 1-1 is shown as consisting of one layer of paper and one layer of burlap, it will be understood that each web may comprise more than two plies. For example, each web may consist of two paper plies laminated by means of asphalt and a burlap ply laminated to one of the paper plies on the outside thereof by asphalt. Or each web may consist of a layer of burlap sandwiched between two layers of paper with asphalt between the burlap and each paper layer. In any case, the two webs are seamed together by means of waterproof laminant between opposed marginal portions of their cloth layers, and the cloth of one of the webs projects beyond a paper layer of this web at the other margin of this web` In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. Waterproof wrapping material adapted to be supplied in roll form comprising a first continuous web consisting of a layer of paper and a layer of cloth laminated by means of a waterproof laminant, a second continuous web consisting of a layer of paper and a layer of cloth laminated by means of a waterproof laminant, the cloth layers of the two webs being of substantially equal width, the paper layer of one web having a width substantially equal to the width of the respective cloth layer and being substantially coextensive therewith, the paper layer of the other web being narrower than the respective cloth layer and having one edge located adjacent one edge of the respective cloth layer audits other edge spaced inward from the other edge of the respective cloth layer so that the latter projects beyond the paper of said other web at the other edge of the latter to provide a cloth flap, said webs being superimposed atwise one on the other coextensive with one another with one edge of the rst web substantially in register with one edge of the second web and with the other edge of the rst web substantially in register with the other edge of the second web and with their cloth layers in face-to-face engagement throughout the entire interfacial area of the cloth layers, said webs being secured together only along the margin thereof opposite the cloth flap by means of a stripe of waterproof adhesive extending along said margin between the cloth layers.

2. Waterproof Wrapping material as set forth in claim l wherein the cloth layer of each web consists of burlap and wherein the paper and burlap 'layers of each web are laminated by means of asphalt, and wherein the paper layer of each web projects beyond the burlap layer thereof at the said margin thereof where the webs are secured together by the stripe of adhesive.

References Cited in the tile of this patent UNITED STATES PATENTS 1,935,612 Brady Nov. 21, 1933 2,016,851 Brady Oct. 8, 1935 2,106,875 Rowe Feb. l, 1938 2,683,679 Hurd et al July 13, 1954 2,705,209 Rowe Mar. 29, 1955 2,735,543 Trow Feb. 21, 1956 FOREIGN PATENTS 390,919 Great Britain Apr. 20, 1933 

1. WATERPROOF WRAPPING MATERIAL ADAPTED TO BE SUPPLIED IN ROOL FROM COMPRISING A FIRST CONTINUOUS WEB CONSISTING OF A LAYER OF PAPER AND A LAYER OF CLOTH LAMINATED BY MEANS OF A WATERPROOF LAMINANT, A SECOND CONTINUOUS WEB CONSISTING OF A LAYER OF PAPER AND A LAYER OF CLOTH LAMINATED BY MEANS OF A WATERPROOF LAMINANT, THE CLOTH LAYERS OF THE TWO WEBS BEING OF SUBSTANTIALLY EQUAL WIDTH, THE PAPER LAYER OF ONE WEB HAVING A WIDTH SUBSTANTIALLY EQUALLY TO THE WIDTH OF THE RESPECTIVE CLOTH LAYER AND BEING SUBSTANTIALLY COEXTENSIVE THEREWITH, THE PAPER LAYER OF THE OTHER WEB BEING NARROWER THAN THE RESPECTIVE CLOTH LAYER AND HAVING ONE EDGE LOCATED ADJACENT ONE EDGE OF THE RESPECTIVE CLOTH LAYER AND ITS OTHER EDGE SPACED INWARD FROM THE OTHER EDGE OF THE RESPECTIVE CLOTH LAYER SO THAT THE LATTER PROJECTS BEYOND THE PAPER OF SAID OTHER WEB AT THE OTHER EDGE OF THE LATTER TO PROVIDE A CLOTH FLAP, SAID 